At what altitude should you start using the VFR cruising altitude?

The appropriate altitude for initiating the use of VFR cruising altitudes is above 3000 feet AGL (Above Ground Level). VFR cruising altitudes are applicable when flying at higher altitudes, specifically between 3,000 feet AGL and 18,000 feet MSL (Mean Sea Level).

At this altitude range, the pilot is expected to follow the VFR cruising rules which dictate specific altitudes based on the magnetic headings. This regulation helps to ensure a clear separation between aircraft flying in opposite directions, which enhances safety and efficiency in the airspace.

Utilizing VFR cruising altitudes below 3000 feet AGL can lead to challenges in identifying and maintaining safe vertical separation from terrain and obstacles, as well as difficulty navigating within controlled airspace. Therefore, commencing VFR cruising altitudes specifically above 3000 feet AGL allows for better adherence to airspace rules and enhances overall aviation safety.